Upper-molding machine.



UPPER MOLDING MACHINE.

APPLICATJON FILED NOV. [8, I915- Patented July 11, 1916.

human surname rarnmr OFFJWE.

JOSEPH GOULDBOURN, ARTHUR BATES, AND ARTHUR ERNEST JERRAM, OF LEICESTER,

ENGLAND, ASSIGNORS TO UNITED SHOE MACHINERY COMPANY, OF PATERSON,

NEW JERSEY, A CORPORATION OF NEW JERSEY.

UPPER-MOLDING MACHINE.

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Specification of Letters Patent.

Patented July llll, ftlllfi.

To all whom it may concern:

Be it known that we, Josnrri GOULD- BOURN, ARTHUR BATES, and AR'TIUR ERNEST JERRAM, subjects of the King of England, residing at Leicester, Leicestershire, England, have invented certain Improvements in Upper-lllolding Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for shaping the end portions of the uppers of boots and shoes and is herein illustrated as embodied in a machine which is provided with inner and outer molds between which the upper is adapted to be engaged and wiping means that coiiperate with a surface formed on one ofthe molds to wipe the margin of the upper, that is left projecting beyond the said surface, over that surface to form a flange at the end portion of the upper. In such upper shaping machines means are also provided for effecting relative motion between the wiping means and the mold to effect compression of the said flange between the wipers and the said surface of the mold. In the use of upper shaping machines organized to operate as described, it is found that when the margin of the upper is not of the same thickness throughout, the flange of the upper is not compressed satisfactorily betweenthe said surface of the mold and the wiping means.

It is an object of the present invention to overcome this difiiculty, and accordingly a feature of the invention consists of the provision in a machine of the type above described of. means for allowing a relative tilting motion between the wiping means and the mold whereby the relative position of said wiping means and the cooperating surface of the mold will be automatically varied in accordance with variations in the thickness of different portions of the flange of upper material.

In a preferred construction the wiping means are supported upon a member that is operatively connected with a second member in such manner that it can tilt transversely of the mold and the second member is so mounted in a support that it can tilt longitudinally of the mold.

A preferred construction according to the present invention will now be described in connection with the machine for molding the heel ends of boots and shoes that is described in United States Letters Patent No. 1,156,897, granted Oct. 19, 1915, on our application. It is to be understood, however, that the invention is not to be considered as limited to the particular construction set forth nor in its connection with the machine referred to, as it could be embodied in other constructions or applied to other upper shaping machines including the bed type of lasting machines without departing from the spirit of the invention and, as another example, the invention is applicable to machines by which the margin of the upper is turned outwardly as in a Veldtschoen shoe, and it is also applicable to machines for molding the toe portions of the uppers of boots and shoes.

In the accompanying drawings :Figure 1 is a view in side elevation and partly in section of the preferred construction of mechanism for permitting relative tilting motion between the wiping means and the cooperating mold; and Fig. 2 is a transverse section of the mechanism shown in Fig. 1.

The mechanism shown in the drawings comprises an inner mold 2 and an outer mold 4 which are adapted to engage the upper between them and wipers 5, 6 that wipe the upstanding margin of the upper over the tread face of the inner mold 2. There may be also a separate back wiper (not shown) arranged as and acting for the purpose described in said prior patent.

The wiper-supporting means comprise a wiper-carrying frame 8 which is reciprocated backward and forward by the means including the lever 9 and link or thrust bar 10 described in said prior patent, being guided in its reciprocatory movements by ribs 12 (Fig. 2) formed upon it which enter grooves in the machine frame 1. Two plungers 13 are mounted to slide vertically in the frame 8, each being pressed downwardly in the frame by a pair of springs 14 which bear upon a cross-head 15 formed on or secured to the plunger. The downward move ment of theplungers'13 is limited by nuts screwed upon their upper ends and set screws 16 afford means for adjusting the degree of compression of the springs 14. The plungers 13 are each connected with a plate 17 by a pair of toggles 18, 19 which operate in the manner hereinafter described. The plate 17 has its under surface curved in a transverse direction, as shown in Fig. 2, and is situated within a recess formed in a second plate 20 to which the wipers 5, 6 are pivoted, one of the pivots being shown at 21 in Fig. 1.- Springs 22, 2 3 which are connected respectively with the plate 20, and the upper pivots of the toggles tend to maintain the two plates in engagement when the toggles are broken.

The lever 9 for advancing the wipers to wlpe the margin of the upper over the tread face of the inner mold 2 and for compressing it against the said tread face is pivoted at 24; to the wiper-carrying frame 8 and is connected by a short link 25 to a thrust bar 26 which is connected with the middle jdint of both the toggles. In the operation of the machine the frame 8 is moved forwardly to cause the wipers to wipe inwardly the upstanding margin of the upper as described in said prior patent by a reciprocating thrust bar 10 which is connected to the lever 9 which is a bell-crank with a rear arm 27 carrying a roll riding on a cam track to prevent the turning of the lever 9 on its pivot 24, as described in the said specification, until the Wipers have completed their wiping function, and then the lever 9 is permitted to turn for operating the thrust bar 26 to straighten the toggles and thus cause them to force down the wipers to compress the margin of the upper against the tread face of the inner mold 2. If the margin varies in thickness at different parts, the wipers can tilt to accommodate such variation inasmuch as the springs 14 can yield to permit the plate 17 to tip longitudinally of the mold and the curved lower surface of the plate 17 permits the plate 20 to tip transversely thereof.

In molding machines in which the margin of the upper or the forepart thereof is turned outwardly as in a Veldtschoen shoe, the wipers will move outward from an initial position within the margin of the upper that projects beyond the surface of the molds so as to wipe that margin outwardly over the cooperating surface of the outer mold, and it is obvious that the means according to the present invention for permitting a relative tilting motion between the wiping means and the mold can readily be applied to such machines.

Having explained the nature of this invention and described a preferred construction embodying it, we claim as new and desire to secure by Letters Patent of the United States 1. In a machine of the class described for shaping the end portions of the uppers of boots and shoes, the combination with molds and wipers for fianging the upper over the top face of a mold, of means for allowing a relative tilting motion between the wipers and the mold by which the relative position of the wipers and the cooperating surface of the mold will be automatically varied in accordance with variations in thickness of diflerent portions of the flange of the upper materials.

2. In a machine for shaping the upper materials of an end portion of a. shoe, the combination with inner and outer molds and wipers for forming the margin of the upper materials into a sole attaching flange, of operating means for the molds and the wipers including means to effect compression of the flange in the position to which it is formed and means constructed and arranged to allow relative tilting of the 3-4 wipers and the mold over which the flange is formed, for the purpose described.

'8. In a machine for shaping the upper materials of an end portion of a shoe, the combination with inner and outer molds and wipers for forming the margin of the upper materials into a sole attaching flange, of operating means for the molds and the wipers including means to force the wipers down upon the flange with a compressing action and connections between the wipers and said means permitting the wipers to tilt relatively to said means for adapting their position to variations in the thickness of the flange at different portions of the shoe end.

4. In a machine for shaping the upper materials of an end portion of a shoe, the combination with inner and outer molds and wipers for forming the margin of the upper materials into a sole attaching flange, of operating means for the molds and the wipers including means to force the wipers down upon the flange with a compressing action and connections between thewipers and said means permitting the wipers to tilt transversely of the shoe and also longitudinally of the shoe relatively to said means for adapting their position to variations in the thickness of the flange at different portions of the shoe end.

5. In a machine for operating on the sole attaching flange of a shoe upper, the combination with wipers for turning the flange and means for sustaining the flange, of two wiper supporting members operatively connected together in such manner that the wipers can automatically tilt transversely and longitudinally of the shoe for adaptation of themselves to differences of thickness of different portions of the flange.

6. In a machine for operating on the sole attaching flange of a shoe upper, the combination with a wiper supporting member that is operatively connected with a second member in such manner that it can tilt transversely of the shoe, and a support in which the second member is so mounted that it can tilt longitudinally of the shoe.

7 In a machine for operating on the sole attaching flange of a shoe upper, the combination with a reciprocating wiper carr ing frame, plungers mounted'in the front and rear of the frame, springs pressing the plungers downwardly, a wiper carrier, a plate having a transversely curved lower surface bearing on the wiper carrier, and toggles connecting the plungers with said plate, all arranged to permit the wiper carrier to tilt on the transversely curved surface of the plate in response to variations in resistance of different portions of the flange to compression when the toggles are operated to force the wipers down upon the flange.

8. In a machine for operating on the sole attaching flange of a shoe upper, the combination with flange turning wipers, a carrier for the wipers, means for reciprocating the wiper carrier, and means against which the carrier rests upwardly and which presents to the carrier a transversely curved bearing surface upon which the carrier can tilt to adapt the wipers to the work.

9. In a machine for operating on the sole attaching flange of a shoe upper, the combination with flange turning wipers, a carrier for the wipers, means for reciprocating the wiper carrier, means against which the carrier rests upwardly and which presents to the carrier a transversely curved bearing surface upon which the carrier can tilt to adapt the wipers to the work, and springs for maintaining the wiper carrier in a normal position.

10. In a machine for operating on the sole attaching flange of a shoe upper, the combination with flange turning Wipers, a carrier for the wipers, means for reciprocating the wiper carrier, and means against which the carrier rests upwardly and which is yieldingly pressed downwardly at its front and rear ends and can yield at either end to permit the carrier to tilt longitudinally to adapt the wipers to variations in the thickness of the flange at the front and rear of the portion of the work being operated bination with flange turning wipers, a carrier for the Wipers, means for reciprocating the wiper carrier, and means for pressing the carrier downwardly including independently yielding abutments over the front and rear ends of the wipers and pressure transmitting means acting between said respective abutments and the front and rear end portions of the wipers, said parts being organized to allow the wipers to tilt longitudinally for adapting them to the work.

12. In a machine of the class described, a wiper carrying frame, means to reciprocate the frame lengthwise of the shoe, and end embracing wipers mounted in the frame to tilt automatically relatively thereto in response to differences in thickness of different portions of the work over which the wipers are advanced.

13. In a machine of the class described, a wiper carrying frame, means to reciprocate the frame lengtl'iwise of the shoe, end embracing wipers mounted in the frame to tilt relatively thereto in response to differences in thickness of different portions of the work over which the wipers are advanced, and yielding means located in said frame and against the resistance of which the tilting may take place.

14. I11 a machine of the class described, a reciprocating frame, two plunger-s spring pressed downwardly in opposite ends of the frame, a wiper carrier, a pair of toggles operatively connecting each plunger with the carrier, and operating means to advance the carrier and. then straighten the toggles, the spring plunger-s permitting the wiper carrier to adjust itself to differences in thickness of different parts of the work under the wipers.

In testimony whereof we have signed our names to this specification.

JOSEPH GOULDBOURN. ARTHUR BATES. ARTHUR ERNEST J ERRAM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, W'ashington, D. G. 

